In most areas with a five-day working week, Friday is the last workday before the weekend and is therefore viewed as a cause for celebration or relief, leading to the expression TGIF, an acronym for Thank God It's Friday. (That phrase was popularized by a movie during the 1970s.) Friday is also the inspiration for the restaurant, aptly named, T.G.I. Friday's.
In the popular rhyme, "Friday's Child is loving and giving".
In Islam, Friday is the day of public worship in mosques.
Following on from "TGI Friday", maverick British television host Chris Evans created the programme TFI Friday, the initials supposedly standing for "Thank Four It's" (Four being a reference to Channel 4, the television station) - any other meaning for the F was a matter for the viewer's own imagination.